Liquid-measuring apparatus.



A. B. WALLEM.

LIQUID MEASUHING APPARATUS.

APPucATloN man Ams. |914.

Patented Mar. 13, 1917.

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l INVEOR Ey ."7 l

WITNESSES A. WALLEM. UQUID MEASURlNG APPARATUS.

APPLlCATlON FILED APR. 3,1914.

1.218326. Patented Mar.13,1917

A TTQRNE v YA. B. wALLEM. Lloulo MsAsuains APPARATUS.

APPLICATION FILED APILS. 19H

Patented Mar. 13, 1917.

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. l. H; d I l ,L ab d@ dfb l l A Y ATTORNEY j UNITED STATES PATENTOFFICE.

AXEL B. WALLEN, on CYNWYD, rENNsYLvANia, AssiGNon To JosiiiPI-ih s.LQVENING WHARTON, WILLIAM s. HALLOWELL, AND JOHN c. JONES, ALL o F BITHLADELPHIA, PENNsYLVANiA, DOING BUSINESS UNDER THE FIRM-NAME 0FnAnnIsoN SAFETY 4norman; WORKS.

To all 'whom may concern:

VBe it known that I, AXEL B NV'ALLEM, a citizen of the United yStates ofAmerica, residing in Cynivyd,"in the county oi Montgoinery, in the Stateoi Pennsylvania, have invented certain new and useful Improve ments inLiqiiidMeasiii-ing Apparatus, of

which the following is a true and eXactdeseription, reference being hadto the aoeoinpzfiying drawings, which torni a part thereof, l

My 'presenti rinvention relates to liquid yiiieasurinbr apparatus of thekind in which a measuring chamber is caused to alternately till, anddisclia'rgeyand more partieiilarl)7 to lthe type oij nieiriiig apparatusdisclosed and claimed in iiiyprio l-.ateii`t- No.' 1,062.93?, grantedMay 27th. 1913, in which the liquid to be measured is passed through oneor the `f other of two measuring chain-tiers which. alternately fill andempty. 1 i li'iiuary`objerts of the present invention are to 'provideimproved operating o oii trolling iiieansfor the valve ineehailiini bywhirhfa measuringY chamber is caused `to discharge and then fill upagain, as the coiiditions oiuse may require the discharge of measuredliquid; and to provide satisfactory iiieans` for venting or avoidingundesirable `changes of pressure-in the upper portion of a measuring"eliainber as the lattei` fills and empties.

The various ifea-'tures of; novelty which with particiilarit)7 intheclaims annexed to 1 and forming a part 'of this specification. For .abetteiuliderstaiidiiig` of the invention. however` and of the.advantages possessed b v it, reference. should be had totliefareoinpaiifying drawings and descriptive matter. in which 'haveillustrated and described preferred forms o'ic apparatus en'ibodyiiigjmy invention.

(7)1 the drawings: Figure l is-a front elevation olf iny iiiiF rovediiieasui'iiigi apparatus. withpartsl broken awa v and in sertion; Fig. Lisa par-V tial sertioii on the line l, and on a `ljargnir scale thanFig. `1; Fig. i side elevation ot' the apparatus sliowii `iu Fig. l;Figi. l is a 'sectionalelevationtaken on the ,lineat of Fig. 3'; Figo isa partial side Specification of Letters iivatent.

`Application led April 3, 1914. Sera-.1 No. 829,282.

-foriiied with ports fla' and do",

cha iaoterize my invention are pointed out LIQUID-MEASURING APPARATUS(Patented Mar. 13. 1917.v

elevation taken si-nilarly to Fig. 3,bi1t on a larger seale; ancl ,Fig.G is a section taken on the broken lii'ie ('r-G of Fig. 5.

n the drawings, A and'B represent the two measuring chambers,- Which,`preferably as shown, though not neeessari1y,ai e in the forni of thesimilar compartments into which a casing element C is dividedby'acleritrai.1` partition C. As shown, the tivo compartments A and Bare forlnedwith inlet ports at'their 'irpper ends, and outlet portsat'their lower ends. The two iiilet openings coin- ;nuiiicate withcorresponding outlet passages /Pand (N), respectively, formed iii thecas ing ot, a valve D, secured to the easing ele* nient .-Theeasing'otvalve D is foi-ined with a` cylindrical partition il',concatqto 4the inlet chamber "Il of tlievalve easing,ii-"nd` pnnecb,ingr the i chamber (l with the outlet pa ssages la and di),respectively.y Phe flow,

'through the ports flo and Jb" is eoiitrolled ieetiiig' through thevalve 'asiiigx' Jlil Fig? 4. the valve Iiieiiiliei D', when iii the-fun'line position, closes" the port (u while leur?,

ing the port db open, and when iii thef dotted luie position` closes theport- Jb while leavingr the pori fla. open.. The valve .neinber D" isadvantageously foriiiediwgli sui rient lap so that in moving from eitherposipreviousl \y vopen before opening,r the. pre riousliy closed port.The inlet elia'inbei' d of .the casing I) is connected to --tlie conduitor reservoir supplying-the water Y to be iiieasiiredi v Y The outletports from the chambers A and 'l, rospeetivelv, communicate-with inletpas- "sages 'mi and el. respectively, of the vaine E,

ytion into theotlier position itclosesthe port i s Jondin valve casingswith o )erating arms an El, respectivel "he armsl)lo and l* areconnected by inks O2 and 0, respectively, to an operating lever O,fulcrumed at 0. The valves and operating connections are so arrangedthat normally the inlet port-da or db, leading to one, and

the outlet port eb or en, leading from the other of the chambers A andB, are open, `while the other two of the four ports cla, db,

, e?) and maare closed, thus permitting the one ing closed theI twoports previously open.

The oscillating'movements of lever are brought about by a fluid pressuremotor comprising a cylinder M, in which works a piston N, having' itsstem connected by a link N to the lever The cylinder M receives themotive fluid, which may be steam or other `suitablel and convenientfluid under pressure, through the supply pi e L.

The passage of the pressure uid through the supply pipe L is directlycontrolled, in

the particular form of apparatus shown, by the primary cut oil' valve K,and the passage of ,thez ressure fluid into one end or the other o the clinder M, as well as the eX- haust-'from tie cylinder, is directly con--troiledby a. dise-itesm; wave. 1i.

The primary 4cut o' valve K is operated by a float I in response tovariations inthe height of water level in the chamber or conduit sectionGv into which the chambers A and B discharge. The measured water issuesfrom .thechamber through the outlet fos G and may pass froin'the 'latterto a boiler feed. )ump orheotherwise disposed of. The

s ve tothe' riseand fallof the iechamber Gr,is arranged as water.level-` in .Y 'shownina float-chamber H; attached to the' side of v'andfo'riniiig an extension ofthe chamber As-shown, the float I iscarriedby: airarinisecuredlto a shatI,' which', externallyofth: "lat chamberH,carrles an arm moveir'i'ent'Toll th' -s'pondu'ig movement ofytbcvallveuK. -The l, The latten is connected b va link AI3 to i vi .the'operating lever K ofthe valve K. The

pi'n and slot co mection--sl-iown between the arm I2 andtl link rantsof' a limited =floi l without a. corre- .spring pressed cam "leien-:lminsures a quick movement ofthelfloat ll in either direction.

The valve R-connects the pipe L to the upper or lower end of the cvlindcr M accordingly as the movable valve member R is in itsiipper orlower position. The valveV also connects he vupper or lower end .of theey1-' .the chambers A vand ll.

inder M to the exhaust pi )ing L10 accordingly as the valve member t isin its lower or upper position.

In so far as above described my improved measuring apparatus does notdiffer 1n sub 7o stance from apparatus shown in my said pr`ior patient.In the present apparatus the distributing valve R is operated b ylfloats responsiveto the varying accumulation of water in the chambers Aand B, as in my prior patent; but tlic present apparatus di fers fromthat of the prior patent in the arrangement of the actuating floats andthe connections 'through which the floatsoperate the distributing valve.In my resent ap-l 8o paratus, moreover, l have provided 'valves operatedby the floats for closing the vent pipes from the chambers A and B whenthe latter are filled.

In the apparatusI shown herein, the cham- 35 y bers A and ll are formed.with upper por'- tioiis or extensions A and B respectively, which are.substantially smaller in horizontal cross section than the lower bodyportions of Each of these eX- tensions is formed with-an opening at itstop into which is screwed a valve casing Q. Working in the chamberextensions A vand B"'are floats SA and SB, respectively. Each A.of -thefloats SA and SB carries at its top a 95 valve S, adapted, when thefloat is raised, to seat a ainst'the corresponding valve easing Qv anclose, communication between the Vchamber Q' tliereof and the chamber Aor B beneath'lt. As shown, each valve S is 100 rigidly attached to thefloat carrying it, and

has a spherical seat engaging portion, and theseats for the valves S arealso spherical. Each of the floats SA and 'SB is loosely connected to acmresponding stem S by a ball and socket joint S2 above the valve S.Each stem S is connected by links T to a lever T.- The latter iscarriedby a rock shaft T2 journaled in a bracket carried .by the casingC. An arm Ta vsecured to the shaft T2 fis`110 oonnected by a link T to a.rocker U jour? lialed on the stationary shaft C1". This shaft also hasjournaled on it a rocker The hub of the vrocker U is formed with latooth U entering a recess'or notch YV in .115 i have a,limited angularmovement wtrthout giving motion to rocker W. .The latter is 120,

formed with two arms W? and '\V". The arm 'W2 carries a pin W workingina slot R formed in the upper end of a link R2 connected-tov the stemof the valve member Rf.

The arm Wa ofthe rocker W is connected to4 125 p one end of a spring V,Awhich has itsother end so. connected to the easing C that when' therocker W is shifted from the ful-l to the dotted line positions of Fig.('i,.the line of' action of the spring shifts from one side to the otherof the'ax'is ot' the shaft and rocker W and tendsl to col'uplete themovement ot' the rocker lV from either position into the other. As therocker lV completes fp lever arm Ts and counterweight T, As

"shown the vent valve casings Q and the float chamber H are connected tovent or equahz- `ing pi ingP. When the apparatus 'shown is emp, oyed tomeasure the hot water comi ing from an open feed Water heater, as in mysaid prior patent, the equalizing -piping P `should beccnnected to thesteam space of` the heater., When the apparatus is used to measure coldwater,'the casings Q, need not ,be connected to the piping P, but mayopen directly tothe atmosphere. shouldv still lead upward from ber H .tothe level of the topsof the` measur- The piping P ing chambers, if the`condltons of use are,

such` as to create a4 substantial rhydrostatic pressure at., any time`in the chamber H.'

"Ino' ration,-, While one measuring chamberisA filling and the otherisyeinptying, both valves S are oil' their seats, so that there isnotendency to produce a vacuum in the chamber which is emptying or tobuild up an undesirable lfluid pressure above the surface of the Waterin the chamber. which is `filling.` As the water risesvi'n thelastmentioned chamber to the level shown inl chamr B' in Fig. 1, thecorresponding float (SB as shown in Fig. 1) `is moved yupward uutilthevalve S carried by it, seats. In the yfinal portion of theupward'movfementl of fthe Goat immediately preceding the'seating of thevalve, the float acts through the rocker U and its tooth U' to move therocker fin one "direction or the other through 4the posiv tion in whichthe line of action of the spring V completes the movement of the rockerlV into one or the other of the tyvo positions shown in Fig. 6. The pinand slot connection. between the rocker l `and valve member Rf resultsin that the member R is `shifted by the motion of ther rocker Wbroughtabout by the spring .V and follovvs instantaneously after the.shifting of the `Springe', V from oneside to the other ot' the slaft'fm. The lost motion between the rockers Uand V is such that therocker U neednot `share in the quick valve closing moveifnent of therocker vWV. The lost motion between each float' and its stem alsopermits the lowering of the float in the filled chamber, as

` the latter begins to empty, sufficiently to un seat the correspondingvalve S and thus avoid any vacuum' formation, without dis turbing t 1evalve member R". The shifting of the valve member R causes the pistonNin the float cham# the cylinder M to be moved and the valves I) and .ICtherebyshifted, if' or when the valve K does not prevent the flou' ofthe motive fluid to the valve 1x` through the pipe L., v

fixen the amnlratu's is used under one condition otl operation, thearrangement should be such that when eithermeasuring chamber A. or afterbeing filled, is opened to the chamber (i, tbe filled measuring ehamberwill empty, and the emptied chamber will fill, in time than is requiredfor the water passing out ofthe emptylng cha m ber, to flow through thechamber (l. In other words,pwhen the chamber G supplies a boiler feedypump, for instance, the appa'- 'ratusshould be so designed that eitherchamber A or B will fill or empty in less time than that required by theWorking at its maximum capacity, to pump out of `the receptacle -G'aquantity of water equal to that which either chamber A or B will hold.In consequence, as either measuring chamber begins to discharge, thewater levelpin the receptacle and Hoat chamber H rises and theifloat Ithen closes the valve K. lVhen the one chamber has been em )tied and theothe` lillwl the valve member: it is moved so as to permit the motivefluid to move the piston N to the otherendofv the cylinder M. But suchmovement of the piston N will not occur until the level of the boilerfeed pump,

liquid in float chamber H falls sufficiently to allow the valve K toopen, thus the motive fluid to the cylinder M; When admitting f ltherefore the withdrawal of Water from the `receptacle G sufficientlylowers the water level in the latter, the float-1v falls and opens thevalve K. Under this' condition of operation the filling chamber`will'fill in less time than the emptying chaniberempties and the` valveK is needed ,to preventv the i shifting of the valves D and E before.the

emptyingr chauiber is entirely empty.

When the apparatus is used to measure water of condensation discharginginto a hot well, for instance, the flow through the chamber G may wellbe unrestricted so that if the ports ce and ab are larger than the portsda and do', respectively, the emptying chamber may empty in less timethan the filling chamber fills. In t-his'case the valve K will'always!be open and hence is unnecessary and may be 'dispensed` with.

Inaslnuch-as the horizontal cros section of the chamber extensions A'andfB is sub` stantially less than that of the body portions of thechambers A and B, andas these chamber extensions are substantiallyfilled moreover by the floats SA and SB, an a ppreciable difference intheyheight of water level in a chamber extension A orBf at the instantat which the valves Dfand E shift will make but an insignificantljiercentage change 41n the amount of( waterfin the chamber which thenbegins to empty. closing of the vent opening of the filled chamberprevents liquid from passin out through the vent opening and anyvariation in the effective capacity of the measuring chamber from thiscause. As the operating connections between the valve controllingmechanism and the floats SA and SB pass through the vent openings in thetops of the chambers A and B, no stufling box provi? sions forthese'loats need beY made in the walls kof the measuring chambersproper. Gage glasses Z are connected at "their lower ends by pipes Zoneto the `passage ea and the other .to the passage eb of the valve E, andare connected at their upper ends to the corresponding vent valvecasings by piges Z2.

he oscillating movements of the lever O and thereforethe number of timesthe two chambers A and B lill and empty, are counted by means of acounting train X heaving its operating lever X connected to thevl'n O2.

empty, I may provide a clock driven recording device Y having itsactuating member Y engaged and operated by the lpin N? connected to the,piston N on each up and down` movement of the latter. i

lVhile in accordance with 'the provisions of the statutes I haveillustrated and described the best forms of my invention now known tome, it will be apparent to those skilled in the art that changes may bemade'in the forms of apparatus disclosed without departing from thespirit of my invention, and that under some conditions certain featuresof my invention may be used with advantage,v without a corresponding useof other features l A Having now described my inventiomwhat I claimasnew and desire to secure by Letters Patent, is: l

V1. A liquid measuring device comprising two measuring chambers eachformed withl a. vent port at its top, 'a valvemeehanism comprisingcontrolling the admission to and discharge from said chambersand meansfor automatically shifting said mechanism to cause said chambers' tofill and empty alternately, a float in each chamber, an op eratingconnection to each float extending through the corresponding vent port.and a lvalve carried, by each float for closing the corresponding ventport as the 'loat rises to its upper position. y

2. 'A liquid measuring device comprisingr two measuring chambers. avalve mrrhai nismucontrolling the admission to, and discharge from saidchambers, and means for automatically shifting said mechanism tocause-said chambers to,fill and empty alternately, said means comprisingfluid pressure valve shifting mechanism, a controlling To obtain agraphic record of the number of times the measuring chambers fill andThe positve'v-valve theretor, an actuatin member for said .valve, saidmember being s iftable back and forth between two operative positions,means acting onsaid memberto cause the latter to complete a. movement`from one :position to the other after anY initial `portion of saidmovement has been made, ,and means ren sponsive to the distribution oflliquid in the two measuring chambers for starting said -movement in onedirection or thel other as one or the other of the two chambers bevcomes filled and the other empty.

3. A liquid measuring device comprising two measuring chambers eachformed with a vent port at its top, a valvemechanism con trolling the,admission to and discharge from rsaid chambers, and. means forautomatically 'shifting said mechanism to. cause said chambers to filland empty alternatelyr comprising a 'loatfin each chamber, `valves movedby the floats for alternatelyclosing each vent port 'as thecorresponding oat -risesto its upper position, a memberthrough whichsaid valve mechanism is actuated, meal'is including an operatingconnection to each float extending through a corresponding vent portconnecting said floatsforactuating said member said last means being soconnected to said `member as to permitan ini tial` movement of each{loat out of its upper position without producing al correspondingmovement of said member. v I

4. A liquid measuring device [comprising two measuring chambers, a valvemechanism controlling the admission'to and discharge from said chambers,and means for automatically shifting said mechanismlto cause sa-idchambers to fill and empty` alternately, said means comprising a Irockershiftable back and forth between two positions, a. deviceconnectedthereto and act-ing to cause the rocker to make the finalportion of a,

means permitting a limited angular move! ll i) ment of said secondrockerI relative to the other but causing the motion ofsaid secondrocker to be transmitted to the othii when the movement of said secondrocker exceeds said limited movement and float actuated means responsiveto the distribution of liquid in said chambersiior oscillating saidVsecond rocker on predetermined changes in the said distribution. v y vp ln a liquid measuring device having a measuring chamber formed with avent port at its top` a valve' mechanism for causing said chamber toalternately fill and empty, controlling means therefor including a floatlocated in said chamber and an operating connection extending throughsaid port through which said float actuates said mechanism to interruptthe supply of liquid

